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Stockholders' Equity (Details Textual) - USD ($) |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 15, 2018 | Oct. 07, 2017 | May 05, 2017 | Apr. 13, 2017 | Dec. 19, 2017 | May 16, 2016 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Apr. 07, 2017
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  | $ 792,600 | $ 694,287 | $ 1,579,921 | $ 353,120 |
Incremental modified compensation cost |  |  |  |  |  |  |  |  |  |  | $ 55,055 |  |
Aggregate purchase price |  |  |  |  | $ 1,000,000 |  |  |  |  |  |  |  |
Common stock, shares sold |  |  |  |  | 200,000 |  |  |  |  |  |  |  |
Increase total number of shares of common stock authorized for issuance |  |  |  |  |  |  |  |  |  |  |  |  | 25,000,000
Agreements amendments, description | <p style="margin: 0pt">(i) a restricted stock award agreement, dated March 3, 2016, as amended, related to the original award of 142,858 shares of restricted common stock to Mr. Lerner and (ii) a restricted stock award agreement, dated December 14, 2011, as amended, related to the original award of 121,429 shares of restricted common stock to Mr. Lerner (together, the “Restricted Stock Award Amendments”).</p> |  |  |  |  |  |  |  | <p style="margin: 0pt">(i) Mr. Lerner’s tax withholding obligation with respect to the vesting shares and (ii) $100,000, with the remaining amount of the tax withholding obligation, if any, payable by Mr. Lerner.</p> |  |  |  |
Purchase price, per share |  |  |  |  | $ 5.00 |  |  |  |  |  |  |  |
Harrington [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options, exercise price |  |  | $ 3.36 |  |  |  |  |  |  |  |  |  |
Stock option right to purchase |  |  | 28,571 |  |  |  |  |  |  |  |  |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Stock option transaction description |  |  |  | (i) a stock option representing the right to purchase 80,000 shares of common stock at an exercise price equal to $3.63 per share, with the shares underlying this stock option vesting 25% on the six month anniversary of the date of grant and the remaining three tranches vesting on each of the first, second and third anniversaries of the first vesting date, and (ii) a stock option representing the right to purchase 24,000 shares of common stock at an exercise price equal to $3.63 per share, with the shares underlying this stock option vesting based on the Company's achievement of certain performance goals related to its annual revenues. In addition, on April 13, 2017, the Company's Board of Directors awarded Jason Katz, Chief Operating Officer and Chairman of the Board of Directors, a stock option representing the right to purchase 70,000 shares of common stock at an exercise price equal to $3.63 per share, with (i) 17,500 of the underlying shares vesting based on the Company's achievement of certain performance goals related to its earnings before interest, tax, depreciation, and amortization and (ii) 52,500 of the underlying shares vesting based on the Company's achievement of certain performance goals related to its annual revenues. |  |  |  |  |  |  |  |  |
Clifford Lerner [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting shares of restricted stock |  | 105,715 |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Options to purchase aggregate common stock exercise price, cancelled |  |  |  |  |  |  |  |  |  |  | $ 21.00 |  |
Options to purchase aggregate common stock exchanged exercise price per share |  |  |  |  |  |  |  |  |  |  | 6.00 |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Options to purchase aggregate common stock exercise price, cancelled |  |  |  |  |  |  |  |  |  |  | 4.55 |  |
Options to purchase aggregate common stock exchanged exercise price per share |  |  |  |  |  |  |  |  |  |  | $ 3.36 |  |
Stock Compensation Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued under plan |  |  |  |  |  | 1,300,000 |  |  |  |  |  |  |
Percentage of common stock delivered pursuant to incentive stock options |  |  |  |  |  | 100.00% |  |  |  |  | 100.00% |  |
Number of stock available for future issuance |  |  |  |  |  |  | 418,889 |  | 418,889 |  |  |  |
Terminated date of future awards |  |  |  |  |  |  |  |  | May 16, 2016 |  | May 16, 2016 |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  | $ 741,496 | 185,374 |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Total unrecognized compensation expense |  |  |  |  |  |  | $ 926,869 |  | $ 926,869 |  |  |  |
Weighted average expected recognition period of unrecognized compensation expense |  |  |  |  |  |  |  |  | 1 year 2 months 12 days |  | 1 year 9 months 18 days |  |
Stock-based compensation expense |  |  |  |  |  |  | 185,374 | $ 185,374 | $ 370,746 | 370,748 |  |  |
Vesting shares of restricted stock |  |  |  |  |  |  |  |  |  |  | 43,405 |  |
Restricted Stock [Member] | Clifford Lerner [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting shares of restricted stock |  | 43,405 |  |  |  |  |  |  |  |  |  |  |
Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate intrinsic value of stock options, outstanding |  |  |  |  |  |  | 2,923,478 | 19,302 | $ 2,923,478 | 19,302 | $ 3,063,208 |  |
Aggregate intrinsic value of stock options, exercisable |  |  |  |  |  |  | 1,400,918 | $ 10,960 | 1,400,918 | 10,960 | 1,175,244 |  |
Aggregate fair value of options granted |  |  |  |  |  |  |  |  | 522,774 | $ 956,760 | $ 1,740,578 | $ 682,740 |
Total unrecognized compensation expense |  |  |  |  |  |  | $ 1,669,355 |  | $ 1,669,355 |  |  |  |
Weighted average expected recognition period of unrecognized compensation expense |  |  |  |  |  |  |  |  | 2 years 3 months 19 days |  | 2 years 8 months 5 days |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  |  |  | $ 50,114 |  |
Options to purchase aggregate common stock shares, cancelled |  |  |  |  |  |  |  |  |  |  | 77,312 |  |
Stock option transaction description |  |  |  |  |  |  |  |  | The options vest between one, three and four years and have a term of ten years. |  | <p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">These options vest between one and four years and have a term of ten years.</p> |  |
Aggregate purchase of common stock, shares |  |  |  |  |  |  |  |  | 85,830 |  | 611,522 |  |
Repurchased aggregate shares of common stock |  |  |  |  |  |  |  |  |  |  | 64,600 |  |
Weighted average exercise price |  |  |  |  |  |  |  |  |  |  | $ 3.75 |  |
Stock Option [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options, exercise price |  |  |  |  |  |  |  |  | $ 6.99 |  |  |  |
Stock Option [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options, exercise price |  |  |  |  |  |  |  |  | $ 5.70 |  |  |  |
2011 Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued under plan |  |  |  |  |  |  |  |  | 181,604 |  | 181,604 |  |

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